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Texas Instruments LMV722IDGKRG4
- Part No.:
- LMV722IDGKRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMV722IDGKRG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,097
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Product details
Overview
LMV722IDGKRG4 from Texas Instruments is a dual rail-to-rail output operational amplifier optimized for low-voltage, low-noise, and low-power applications. It operates from 2.2 V to 5.5 V, delivers 10 MHz unity-gain bandwidth, 5.25 V/µs slew rate at 5 V, and 9 nV/√Hz input voltage noise at 1 kHz - enabling high-fidelity signal conditioning in battery-powered audio and sensor front-ends.
For engineers reviewing the LMV722IDGKRG4 datasheet, LMV722IDGKRG4 pinout, LMV722IDGKRG4 application, or LMV722IDGKRG4 equivalent, key selection criteria include its VSSOP-8 package footprint, dual-channel rail-to-rail output swing (≤120 mV from rails at 2.2 V into 600 Ω), input common-mode range extending to ground, and guaranteed 3.5 mV max input offset voltage over –40°C to 105°C.
Technical Context
The LMV722IDGKRG4 integrates two independent high-speed op-amps sharing a common supply domain, each with internally compensated 10 MHz gain-bandwidth product and 67.4° phase margin at 2.2 V. Its input stage uses complementary bipolar transistors to achieve low input bias current (260 nA typ) and wide input common-mode range (–0.3 V to VCC+ – 0.3 V).
Output stage employs Class AB architecture delivering ±20 mA sourcing/sinking capability into 600 Ω loads at 5 V, with rail-to-rail swing maintained across temperature and supply variations. The device supports stable operation with capacitive loads up to 21.2 nF without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.2 V to 5.5 V - enables direct integration into single-cell Li-ion (3.0–3.7 V) and 3.3 V logic systems without level-shifting. |
| Unity-Gain Bandwidth | 10 MHz - supports stable closed-loop operation up to 10× gain at 1 MHz or unity gain at 10 MHz for active filter and buffer designs. |
| Slew Rate | 5.25 V/µs at 5 V - ensures <1% THD for 500 mVpp signals up to 100 kHz into 600 Ω loads. |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - preserves SNR in microphone preamplifiers and precision sensor interfaces where thermal noise dominates. |
| Input Offset Voltage | 3.5 mV max (–40°C to 105°C) - limits DC error to ≤3.5 mV in DC-coupled gain stages without trimming. |
| Rail-to-Rail Output | Swings within 120 mV of either rail at 2.2 V into 600 Ω - maximizes dynamic range in low-voltage data acquisition systems. |
| Quiescent Current | 2.4 mA typ per channel at 5 V - allows dual-channel amplification in portable devices with sub-5 mA total analog supply budget. |
Pinout & Package
VSSOP-8 (DGK) package: 2.3 mm × 2.0 mm body, 0.5 mm pitch, 1.1 mm max height, exposed thermal pad for enhanced power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1IN− | Inverting input of Channel 1 - referenced to ground or feedback network for standard inverting configurations. |
| 2 | 1IN+ | Non-inverting input of Channel 1 - accepts DC-biased or AC-coupled sensor signals with common-mode range including ground. |
| 3 | VCC− | Negative supply rail (typically GND) - shared return path for both amplifiers and output load currents. |
| 4 | 1OUT | Output of Channel 1 - drives loads directly with rail-to-rail swing and ≥20 mA drive strength at 5 V. |
| 5 | 2OUT | Output of Channel 2 - independent output node enabling dual-path signal processing without crosstalk. |
| 6 | 2IN− | Inverting input of Channel 2 - isolated from Channel 1 inputs to support differential or dual-sensor topologies. |
| 7 | 2IN+ | Non-inverting input of Channel 2 - supports matched dual-channel instrumentation or stereo audio paths. |
| 8 | VCC+ | Positive supply rail - powers both channels; decoupling capacitor required within 1 cm for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise input stage | 9 nV/√Hz input voltage noise at 1 kHz enables high-SNR amplification of µV-level sensor outputs. |
| Rail-to-rail output swing | Delivers full 2.2 Vpp output at 2.2 V supply into 600 Ω, maximizing usable dynamic range in low-voltage systems. |
| Ground-sensing input | Input common-mode range includes 0 V, allowing direct connection to single-ended sensors referenced to system ground. |
| Stable with capacitive loads | Operates without oscillation into 21.2 nF loads, eliminating need for isolation resistors in LCD or cable-drive applications. |
| Wide temperature range | Specified from –40°C to +105°C, supporting industrial and automotive cabin electronics deployments. |
Applications
| Cellular Phone Audio Front-End | Laptop Microphone Preamp |
|---|---|
Use Scenario: Amplifying electret microphone output in smartphone voice capture circuits with 3.3 V supply. IC Role / Device Role / Timing Role: Dual-channel op-amp providing gain and filtering for left/right mic signals before ADC sampling. Use Value: 9 nV/√Hz noise floor preserves voice clarity; rail-to-rail output drives 3.3 V ADC reference without attenuation. | Use Scenario: Low-power microphone preamplifier in ultrabook designs requiring <5 mA total analog supply current. IC Role / Device Role / Timing Role: Single-supply, ground-referenced amplifier conditioning mic signal prior to codec interface. Use Value: 2.4 mA/channel quiescent current enables dual-mic support within tight power budgets; input range to ground eliminates DC-blocking caps. |
| Portable Medical Sensor Interface | Battery-Powered Active Filter |
Use Scenario: Signal conditioning for ECG electrode amplifiers in handheld diagnostic devices powered by coin cells. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with gain and common-mode rejection before further processing. Use Value: 3.5 mV max input offset ensures baseline stability over temperature; low 2.2 V min supply extends battery life. | Use Scenario: 2nd-order Sallen-Key low-pass filter in portable audio analyzers operating from 3.7 V Li-ion batteries. IC Role / Device Role / Timing Role: Dual op-amp implementing filter topology with one section as integrator and second as gain stage. Use Value: 10 MHz GBW supports filter cutoffs up to 100 kHz with minimal phase distortion; VSSOP-8 saves PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-voltage op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV722IDR | SOIC-8 package (4.9 mm × 3.9 mm); higher thermal resistance (97°C/W vs. 172°C/W); same electrical specs. | Preferred for through-hole prototyping or legacy board compatibility; less suitable for space-constrained portable designs. | Select when board layout accommodates larger footprint and thermal management via copper pour is impractical. |
| TLV272IDGKR | Lower bandwidth (3 MHz), higher input offset (5 mV max), but lower supply current (1.2 mA/channel at 3 V). | Better suited for ultra-low-power sensor buffers where speed <1 MHz suffices and battery life is critical. | Choose for sub-1 MHz applications prioritizing microamp-level quiescent current over noise or bandwidth. |
Compared with LMV722IDR and TLV272IDGKR, the LMV722IDGKRG4 provides optimal balance of 10 MHz bandwidth, 9 nV/√Hz noise, and VSSOP-8 compactness - making it the preferred choice for space- and performance-constrained portable audio and sensor systems.
Availability
LMV722IDGKRG4 is available at Aetrix Electronics and suitable for cellular phone audio front-ends, laptop microphone preamplifiers, and portable medical sensor interfaces requiring stable component supply across production lifecycles.
Supply support for LMV722IDGKRG4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision amplifiers and low-power signal chain solutions.
The LMV722IDGKRG4 belongs to TI's LMV72x low-noise, low-voltage op-amp family, designed specifically for battery-powered portable electronics where rail-to-rail operation, wide input common-mode range, and sub-10 nV/√Hz noise are essential.
FAQ
What is the maximum operating junction temperature for LMV722IDGKRG4?
The LMV722IDGKRG4 has a maximum operating virtual-junction temperature of 150°C, with recommended operation from –40°C to +105°C ambient. Its VSSOP-8 package features a thermal impedance of 172°C/W, requiring appropriate PCB copper area under the exposed pad for sustained 2.4 mA/channel operation at elevated temperatures.
Does LMV722IDGKRG4 support rail-to-rail input operation?
No, the LMV722IDGKRG4 does not support rail-to-rail input operation. Its input common-mode voltage range extends from –0.3 V to VCC+ – 0.3 V, which includes ground but does not reach the positive rail. This design enables robust operation with single-supply configurations while maintaining low input bias current.
Can LMV722IDGKRG4 drive a 600 Ω load at 2.2 V supply?
Yes, the LMV722IDGKRG4 can drive a 600 Ω load at 2.2 V supply, delivering rail-to-rail output swing within 120 mV of either rail. Electrical characteristics confirm 2.065 V minimum high-level output and 0.145 V maximum low-level output under these conditions, ensuring >2 Vpp usable signal range.
What is the input offset voltage drift specification for LMV722IDGKRG4?
The LMV722IDGKRG4 has an input offset voltage average drift of 0.6 µV/°C at 25°C. Over the full –40°C to +105°C temperature range, the maximum input offset voltage remains 3.5 mV, making it suitable for DC-coupled applications where thermal drift must be bounded.
Is LMV722IDGKRG4 pin-compatible with other VSSOP-8 op-amps?
The LMV722IDGKRG4 follows standard VSSOP-8 pinout for dual op-amps (1IN−, 1IN+, V−, 1OUT, 2OUT, 2IN−, 2IN+, V+), matching industry conventions. However, pin compatibility with other manufacturers' VSSOP-8 op-amps requires verification of identical functionality per pin - TI does not guarantee drop-in replacement with non-TI parts.
LMV722IDGKRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 5.25V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 260 nA
- Voltage - Input Offset:
- 80 µV
- Current - Supply:
- 1.81mA (x2 Channels)
- Current - Output / Channel:
- 52.6 mA
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -45°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
LMV722IDGKRG4 FAQ
1.How can I place an order for LMV722IDGKRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV722IDGKRG4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LMV722IDGKRG4 reliable?
The price and inventory of LMV722IDGKRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV722IDGKRG4 is usually 5 days.
3.What payment methods are accepted for LMV722IDGKRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV722IDGKRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV722IDGKRG4?
LMV722IDGKRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV722IDGKRG4 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LMV722IDGKRG4?
For technical support, including LMV722IDGKRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV722IDGKRG4 requirements.
6.How does Aetrix verify that LMV722IDGKRG4 is sourced from the original manufacturer or authorized distributors?
All LMV722IDGKRG4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LMV722IDGKRG4 meets industry standards.
7.What is the process for return or replacement of LMV722IDGKRG4?
All LMV722IDGKRG4 units undergo pre-shipment inspection (PSI). If there is an issue with LMV722IDGKRG4, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LMV722IDGKRG4 part is unused and in its original packaging.
Return procedure for LMV722IDGKRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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